//
// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

#ifndef ZETASQL_ANALYZER_REWRITERS_REWRITE_SUBPIPELINE_H_
#define ZETASQL_ANALYZER_REWRITERS_REWRITE_SUBPIPELINE_H_

#include <memory>

#include "zetasql/resolved_ast/resolved_ast.h"
#include "absl/status/statusor.h"

namespace zetasql {

// Return the scan to compute a ResolvedSubpipeline with `input_scan`
// stitched in to replace its ResolvedSubpipelineInputScan.
absl::StatusOr<std::unique_ptr<const ResolvedScan>> RewriteSubpipelineToScan(
    std::unique_ptr<const ResolvedSubpipeline> subpipeline,
    std::unique_ptr<const ResolvedScan> input_scan);

}  // namespace zetasql

#endif  // ZETASQL_ANALYZER_REWRITERS_REWRITE_SUBPIPELINE_H_
